<script setup lang="ts">
import { uploadAPI } from '@/apis/common';
import { createRentAPI, delEnterpriseAPI, deleteRentAPI, getEnterpriseListAPI, getRentBuildListAPI, getRentListAPI, outRentAPI } from '@/apis/enterprise';
import type { Datum, Enterprise, EnterpriseListParams, RentBuilding, RentParams } from '@/types/enterprise';
import { ElMessage, ElMessageBox, type FormInstance, type FormRules, type UploadRawFile, type UploadRequestOptions, type UploadUserFile } from 'element-plus';
import { ref, watch } from 'vue';


// 前端自定义的类型，用于展示嵌套表格
interface EnterpriseWithRent extends Enterprise {
  // 合同列表
  rentList: Datum[]
}

// 获取列表数据
const params =ref<EnterpriseListParams>({
  page: 1,
  pageSize: 5,
  name: ''
})
// 列表数据
const list = ref<EnterpriseWithRent[]>([])
// 总条数
const total = ref(0)

// 获取列表数据
const getList =async () => {
  // 请求接口
  const res = await getEnterpriseListAPI(params.value)
  // 赋值
  //  map 映射数据用于前端展示
  list.value = res.data.rows.map(item=>({
  // 展开嵌套表格
  ...item,
  rentList:[]  // 合同列表默认值，用于嵌套表格渲染
  }))
  // 总条数
  total.value = res.data.total
}
// 初始化列表数据
getList()

// 搜索
const onSearch = () => {
  // 搜索需要 重置页数，否则分页异常，无法获取到数据
  params.value.page = 1
  // 重新获取列表数据
  getList()
}

// 删除企业
const delPark =(id:string)=>{
  ElMessageBox.confirm('确定删除该企业吗？', '温馨提示', {
    confirmButtonText: '确定',
    cancelButtonText: '取消',
    type: 'warning'
  }).then(async()=>{
    // 发送请求，删除后端的数据
    await delEnterpriseAPI([id])
    // 提示
    ElMessage.success('删除成功')
    // 重新获取列表数据
    getList()
  }).catch(()=>{})
}


// -----添加合同-----// 表单数据默认值
const initRentForm = () => {
  // 每次调用，都返回一个新对象
  return {
    buildingId: undefined, // 租赁楼宇id
    startTime: '', // 开始日期（不能小于今日日期）
    endTime: '', // 租赁结束日期
    contractUrl: '', // 合同附件url
    contractId: undefined, // 合同附件id
    type: 0, // 操作类型，添加合同0，续签合同1
    enterpriseId: undefined // 企业id
  }
}
// 表单数据
const rentForm = ref<RentParams>(initRentForm())
// 可租赁楼宇列表
const buildList = ref<RentBuilding[]>([]) 

// 表单验证规则
const rentRules = ref<FormRules<RentParams>>({
  buildingId: [
    { required: true, message: '请选择楼宇', trigger: 'change' }
  ],
  endTime: [
    { required: true, message: '请选择租赁日期', trigger: 'blur' }
  ],
  contractId: [
    { required: true, message: '请上传合同文件' }
  ]
})
// 是否显示添加合同弹框
const rentDialogVisible = ref(false)
// 添加合同-打开弹窗
const addRent =async (id:number)=>{
  rentDialogVisible.value = true
  // 获取可租赁楼宇列表
  const res = await getRentBuildListAPI()
  buildList.value = res.data
  // 保存企业id
  rentForm.value.enterpriseId = id
}

// 添加合同-确定按钮
const addRentConfirm =async ()=>{
  try {
    // 表单校验
    await addFormRef.value?.validate()
    // 发送请求，添加合同
    await createRentAPI(rentForm.value)
    // 提示
    ElMessage.success('添加合同成功')
    // 关闭弹窗
    closeRent()
  }catch{
  }
}

const fileList = ref<UploadUserFile[]>([])
// 添加合同-关闭弹窗
const closeRent  = ()=>{
  rentDialogVisible.value = false
  // 重置表单校验（前端）
  addFormRef.value?.resetFields()
  // 重置日期选择器数据(前端)
  timeArr.value = []
  // 重置文件列表(前端)
  fileList.value = []
  // 重置提交给后端的表单数据(后端)
  rentForm.value = initRentForm()
}


// 时间选择器 - 监听时间变化
const timeArr = ref<string[]>([])
// 监听时间变化
watch(timeArr,(val)=>{
  if(val){
    rentForm.value.startTime = val[0]
    rentForm.value.endTime = val[1]
  }else{
    rentForm.value.startTime = ''
    rentForm.value.endTime = ''
  }
},{ deep: true })
// 通过 disabledDate 函数，来设置禁用小于当前时间的日期
const disabledDate = (time: Date) => {
  return time.getTime() < Date.now() - 1000 * 60 * 60 * 24
}

// 上传合同
const addFormRef = ref<FormInstance>()
const onUploadRequest  = async(options:UploadRequestOptions)=>{
  const fd = new FormData()
  fd.append('file',options.file)
  fd.append('type','contract')
  // 发送请求 上传文件
  const res = await uploadAPI(fd)
  // 保存合同附件 url 和 id添加合同
  rentForm.value.contractUrl = res.data.url
  rentForm.value.contractId = res.data.id
  // 触发校验 通过校验清除错误信息
  addFormRef.value?.validateField('contractId')
  // return 存储到 response 属性中
  return res.data
}

// 删除合同
const removeUpload  = ()=>{
  rentForm.value.contractUrl = ''
  rentForm.value.contractId = undefined
  // 主动触发校验，提醒用户
  addFormRef.value?.validateField('contractId')
}

// 校验合同大小
const beforeUpload = (rawFile: UploadRawFile) => {
  // 允许上传的文件格式
  const allowSize = 5*1024*1024
  // 限制文件大小
  if(rawFile.size > allowSize){
    ElMessage.error('文件大小不能超过5M')
    return false
  }
  return true
}

// 展开行时触发
const onExpandChange =async (row: EnterpriseWithRent) => {
// 获取企业的合同列表
 const res = await getRentListAPI(row.id)
//  console.log('当前行被展开', res)
// 把请求回来的数据，直接保存到当前行的企业信息中
 row.rentList = res.data
}

// 退租合同
const outRent =async (row:Datum)=>{
  ElMessageBox.confirm('确定退租该合同吗？', '温馨提示', {
    confirmButtonText: '确定',
    cancelButtonText: '取消',
    type: 'warning'
  }).then(async()=>{
    // 发送请求，退租合同
    await outRentAPI(row.id)
    // 把当前行的状态改为3
    row.status = 3
    // 提示
    ElMessage.success('退租成功')

  }).catch(()=>{})
}

// 删除合同
const deleteRent = async (rentRow:Datum,enterPriseRow:EnterpriseWithRent)=>{
  ElMessageBox.confirm('确定删除该合同吗？', '温馨提示', {
    confirmButtonText: '确定',
    cancelButtonText: '取消',
    type: 'warning'
  }).then(async()=>{
    // 发送请求，退租合同
    await deleteRentAPI(rentRow.id)
    // 删除过滤合同
    enterPriseRow.rentList = enterPriseRow.rentList.filter(item=>item.id !== rentRow.id)
    // 提示
    ElMessage.success('删除成功')
  }).catch(()=>{})
}
</script>



<template>
  <div class="building-container">
    <!-- 搜索区域 -->
    <div class="search-container">
      <div class="search-label">企业名称：</div>
      <el-input v-model="params.name" clearable placeholder="请输入内容" class="search-main" />
      <el-button type="primary" @click="onSearch()">查询</el-button>
    </div>
    <div class="create-container">
      <el-button v-auth="'park:enterprise:add_edit'" type="primary"  @click="$router.push('/exterpriseAdd')">添加企业</el-button>
    </div>
    <!-- 表格区域 -->
    <div class="table">
      <!-- @expand-change 展开或折叠行时触发 -->
      <el-table style="width: 100%" :data="list" @expand-change="onExpandChange" row-key="id">
        <!-- type="expand" 显示一个可展开的按钮 -->
        <el-table-column type="expand">
          <template #default="{ row }">
            <el-table :data="row.rentList">
              <el-table-column label="租赁楼宇" width="320" prop="buildingName" />
              <el-table-column label="租赁起始时间" prop="startTime" />
              <el-table-column label="合同状态" prop="status">
                <!-- 合同的租赁状态 0待生效 1生效中 2已到期 3已退租 -->
                <template v-slot="{ row }">
                  <el-tag v-if="row.status === 0" type="warning">待生效</el-tag>
                  <el-tag v-else-if="row.status === 1" type="success">生效中</el-tag>
                  <el-tag v-else-if="row.status === 2" type="info">已到期</el-tag>
                  <el-tag v-else-if="row.status === 3" type="danger">已退租</el-tag>
                </template>
              </el-table-column>
              <el-table-column label="操作" width="280">
                <template v-slot="{ row: rentRow }">
                  <el-button size="small" type="primary" link>续租</el-button>
                  <el-button @click="outRent(rentRow)" size="small" type="primary" link :disabled="rentRow.status === 3">退租</el-button>
                  <el-button @click="deleteRent(rentRow, row)" size="small" type="primary" link :disabled="rentRow.status !== 3">删除</el-button>
                </template>
              </el-table-column>
            </el-table>
          </template>
        </el-table-column>
        <el-table-column type="index" label="序号" width="120" />
        <el-table-column prop="name" label="企业名称" width="320" />
        <el-table-column prop="contact" label="联系人" />
        <el-table-column prop="contactNumber" label="联系电话" />
        <el-table-column label="操作" width="350">
          <template v-slot="{row}">
            <AuthBtn btn-perm="park:rent:add_surrender">
              <el-button size="small" type="primary" link @click="addRent(row.id)">添加合同</el-button>
            </AuthBtn>
            <el-button size="small" type="primary" link @click="$router.push(`/exterpriseDetail/${row.id}`)">查看</el-button>
            <el-button v-auth="'park:enterprise:add_edit'" size="small" type="primary" link @click="$router.push(`/exterpriseAdd/${row.id}`)" >编辑</el-button>
            <AuthBtn btn-perm="park:enterprise:remove">
              <el-button size="small" type="primary" link>删除</el-button>
            </AuthBtn>
          </template>
        </el-table-column>
      </el-table>
    </div>
    <div class="page-container">
      <el-pagination 
      :total="total"
       layout="total,sizes, prev, pager, next,jumper"
       :page-sizes="[2, 5, 10, 50]"
       v-model:page-size="params.pageSize"
       v-model:current-page="params.page"
       @change="getList()"
        />
    </div>
    <el-dialog v-model="rentDialogVisible" title="添加合同" width="580" @close="closeRent">
      <!-- 表单模版 -->
      <div class="form-container">
        <el-form ref="addFormRef" :model="rentForm" :rules="rentRules" label-position="top">
          <el-form-item label="租赁楼宇" prop="buildingId">
            <el-select v-model="rentForm.buildingId" placeholder="请选择" clearable>
              <el-option v-for="item in buildList" :key="item.id" :label="item.name" :value="item.id" />
            </el-select>
          </el-form-item>
          <el-form-item label="租赁起止日期" prop="endTime">
            <el-date-picker 
            v-model="timeArr"
            type="daterange" 
            range-separator="至" 
            start-placeholder="开始日期"
            end-placeholder="结束日期" 
            value-format="YYYY-MM-DD" 
            :disabled-date="disabledDate"
              />
          </el-form-item>
          <el-form-item label="租赁合同" prop="contractId">
            <el-upload accept=".doc, .pdf" 
            v-model:file-list="fileList"
            :http-request="onUploadRequest"
             @remove="removeUpload" 
            :before-upload="beforeUpload">
              <el-button size="small" type="primary" plain>上传合同文件</el-button>
              <template #tip>
                <div class="el-upload__tip">支持扩展名：.doc .pdf, 文件大小不超过5M</div>
              </template>
            </el-upload>
          </el-form-item>
        </el-form>
      </div>
      <template #footer>
        <el-button @click="closeRent">取消</el-button>
        <el-button type="primary" @click="addRentConfirm">确定</el-button>
      </template>
    </el-dialog>
  </div>
</template>

<style lang="scss" scoped>
.building-container {
  padding: 20px;
}

.search-container {
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgb(237, 237, 237, .9);
  ;
  padding-bottom: 20px;

  .search-label {
    width: 100px;
  }

  .search-main {
    width: 220px;
    margin-right: 10px;
  }
}

.create-container {
  margin: 10px 0px;
}

.page-container {
  padding: 4px 0px;
  text-align: right;
}

.form-container {
  padding: 0px 80px;
}
</style>